Manifold attachment for typewriters



1. Q. SHERMAN. MANIFOLD ATTACHMENT FOR TYPLWRITERS.

APPLICATION FILED 0CT.24, I919. 1,418,480. Patented June 6, 1922.

2 SHEETSSHEET I.

1. E RMAN. MANIFOLD ATTAC T FOR TYPEWRITERS. I

APPLICATION FILED OCT.24I 1919.

1,418,480 PatentedJune 6,1922. SHEET 2.

2 SHEETS- JOHN o. SHERMAN, or DAYTON, 01110.

MANIFOLD ATTACHMENT FOR TYPEWRITERS.

Specification of Letters Patent. Patented June 6, 1922 Application filed October 24, 1919, 'Serial No. 332,882.-

To all whom it may concern:

, Be it known that 1, JOHN Q. SHERMAN, a citizen of the United States, and a resident of Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Manifold Attachments for Typewriters, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this speci fication.

My invention relates to attachments for typewriters designed to carry a series of rolls of paper with carbon paper to be interposed between the strips, and the several strips being fed over the platen of the ordinary typewriter so that manifold copies may be made as the original is printed.

The object of my invention is to provide a construction for the feeding of the strips over the typewriter platen, whereby the several strips may be fed in accurate alignment. The special construction involves the use of an auxiliary sprocket wheel for use with paper which is provided with a series of uniformly spaced perforations along each edge so that the strips may be fed accurately in alignment. v

The invention involves that certain novel construction and arrangement of parts to be hereinafter particularly pointed out and claimed, the particular feature of novelty consisting in the construction under which the sprocket wheel feeding device is interposed between the platen and the roll carryin frame.

' n the drawings,

Figure 1 is a side elevation of my improved construction with the typewriter parts except the carriage somewhat diagrammatically indicated.

Figure is 'arear elevation of theroll paper carnage.

Figure 3 is a top plan View of the type writer platen and feeding devices, with the parts broken away.

Figure 1 is a front elevation of one of the paper rolls.

Figure 5- is a crosssection of the type= writer platen and sprocket feed wheel.

The typewriter casing 1 is provided with a rearwardly extending base portion 2 on which is mounted transversely of the typewriter the rails 3, 3. .On these rails the roll paper carriage 4: is arranged totravel from side to side with the pulley wheels 5, 5, rlding on the rails, and in order that there shall be a ready and easy movement, the rails 3, 3, are very slightly inclined. The roll paper carriage is coupled to the typewriter carriage 6 by side links 7, pivoted at one end to the paper carriage and at the other to the typewriter carriage, so that the roll paper carriage moves with the typewriter carnage from slde to side asthe typewriter is operated. The platen 8 of the typewriter is provided at one end of the spindle thereof with the gear 9 which meshes with the .gear 10 on the feed shaft 11. This feed shaft is provided with a pair of feed wheels 12, 12, at each end, the number and location of the wheels being optional, which feed wheels are formed with a series of peripherally proecting pins 13, spaced equal distances apart, the feed shaft being journaled in the typewriter carriage 6 as the platen is mounted therein. change of lines in the usual way,'and'this movement by reason of the intermeshing gears 9 and 10 rotates the pin wheels 12. The mode of operation and exact location of the pin wheels is subject to modification should this be. desired.

The spindles for holding the rolls of paper 14, 15, 16 and 17 ,as shown in the present embodiment of the invention, are journaled in the sides of the framework 4, and the webs of paper are drawn off of these several .rolls and over the guide rollers 18 arranged in the carriage in the proper position to guide the several webs of paper to the pin wheels 12. The webs of paper are previously prepared with a series of uniformly spaced perforations 19, 19, along each edge, of a size adapted to allow the pins 13 to enter the 'holes loosely and freely. If but one toothed wheel is employed as suggested The platen is rotated for the above then the paper would require but one set of perforations which is readily evident without illustration.

The carbon paper for the duplicate copies is also mounted on rolls 20, a sheet of carbon for each duplicate strip. These strips of carbon paper are narrower than the paper upon which the manifold copies are made, so that the carbon paper comes inside of the pin wheel feeding wheels. The webs of the manifold paper with the carbon paper lying between them are passed around under the platen in the usual way and under the tension rolls 21, 21, mounted in the holders 22, 22, secured on the rod 23. These tension rolls 21, 21, are about in line with the in wheels so that the carbon paper falls inside of the tension rolls.

It is not-intended that the carbon paper shall be .fed with the paper strips, and for that reason the spindles for the carbon paper rolls are-mounted in sockets. on bosses 24 on one side of the side frame of the carriage, and on the opposite side they are mounted in sockets in plungers 25 which extend through the side casing and are provided with heads 26., outside the casing. These plunger members are provided with disks 27 to bear against the end of the carbon roll, and these disks are'held frictionally against the carbon roll by thecolled springs 28 which are interposed between the disks and the casing. In this way the car bon paper roll is held stationary during the feed of the paper strips. Only so much of the carbon paper is unrolled as will carry the carbon strip under the point of printing of the typewriter. To renew the carbon paper from time to time, the tension of the spring disks will be released and the carbon paper drawn forward to subject a fresh portion to the action of the type.

In order to hold the paper strips as they are fed by the pin wheels in contact with the pins, Iprovide a guard plate 30, which is preferably held "under spring tension and is slotted to allow for. the passage of the teeth on. the feeding disk without friction on the paper on each side of the pins to 'hold the strips in engagement therewith.

For severing the paper strips from the Web, any convenient knife bar may be used, and in the construction illustrated I have shown the cover plate for the platen formed as a knife edge 31.

In case it is desired to employ duplicate ribbons of any usual form, the carbon paper devices may be omitted, and instead of individual tension rolls, 21, the usual tension roll will be used extending entirely across the platen, or part way across, the

, structure otherwise not differing from that shown in the drawings. It is not believed to be necessary to show a modified tension roll device since the only difference of construction will be a greater width, the mounting, diameter and clearance of other parts being precisely the same.

The operation of my device is as follows .the feeding of a piece of paper is started in the usual way, and the sheets lined. up and set over the pins on the sprockets or toothed 'wheels. The typewriter is then to be operated in the usual manner, which results in the sprocket wheels, and the platen feed, both acting on the paper. As soon as the sheets come out of alignment, due to travelling around the platen on slightly different radii, or bei It can be seen that my mechanism is simple, and constitutes an attachment for regular styles of typewriters, which gives an aligned feed for duplicate strips.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is .1. In a manifolding attachment for typewriters having a carriage and a rotatable platen feed, the combination of a papermounting means for a plurality of strips of paper, and 'a paper feeding means interposed between the platen feed and the paper mounting means, comprising toothed rotary means to engage successive holes in the paper strips to feed and ahgn them prior to any contact with the platen. 1

2. In a manifolding attachment for ty ewriters having a carriage and a rotata le platen, the combination of friction rollers in engagement with the platen for-feeding the strips of paper, paper mounting means, and a paper feeding means interposed between the platen and the paper mounting means, comprising toothed rotary means to engage successive holes in the paper strips to feed and align them prior to any contact with the platen.

3. In a manifolding attachment for typewriters having a carriage and a rotatable platen, the combination with friction rollers in engagement with the platen for feeding the paper strips thereon, of a paper mounting means for a plurality of strips of paper, and a paper feeding means interposed between the platen and the paper mounting means, comprising toothed rotary members to engage successive perforations in the paper, with gearing connection between the platen and the toothed rotary members whereby the rotation of the platen will operate the toothed members to feed the paper strips in alignment.

- 4. In a manifolding attachment for type- In a manifolding attachment for type-' writers having a carriage and a rotatable platen, the combination with friction rollers in engagement with the platen for feeding the paper strips thereon, of a paper mounting means for a plurality of strips of paper,

and a paper feeding means interposed between the platen and the paper mounting means, comprising toothed rotary members to engage successive perforations in the paper, said friction rollers being adapted to engage the said paper marginallyand means for mounting and retaining a relatively narrow piece of transfer paper between said paper strips.

.(5. In a nianifolding typewriter, the com-- bination of a frame, a rotatable platen and main carriage therefor, a carriage for paper rolls, means for hingedly connecting the paper roll carriage and the main carriage, and a support for the paper roll, carriage comprising essentially, rails lying in a path at an angle to the horizontal, whereby the said paper roll carriage will be aided by gravity in .its step by step movement with the main carriage. 1

7. In a manifolding attachment for typewriters having a carriage and. a rotatable platen feed, the combination of a paper.

mounting means for a plurality of strips of paper, a friction roll or the like engaging the paper against the platen, whereby rotation of the platen will feed the .paper strips. and toothed rotary means mounted between the paper mounting means and the platen and adapted to engage in successive holes formed in the plurality of strips, for the purpose described.

JOHN Q. SHERMAN. 

